Peanut Butter Corn Flake Bars are a simple, no-bake dessert that combines crunchy corn flakes, gooey melted sugars and peanut butter, and a smooth chocolate topping. These bars come together quickly and make a great snack, party treat, or lunchbox sweet. They’re also easy to customize—swap in gluten-free corn flakes, use vegan marshmallow alternatives, or try crunchy peanut butter for extra texture.

No-bake recipes are ideal year-round because they’re fast and require minimal equipment. These bars are similar in spirit to Scotcheroos but use Corn Flakes instead of Rice Krispies, giving them a slightly different crunch and flavor. You can prepare the sugar and corn syrup mixture with the peanut butter on the stovetop or in the microwave—either method works well. The goal is simply to melt and combine the sugars and peanut butter so they coat the cereal evenly.
For microwave preparation, combine the sugar, corn syrup, and peanut butter in a microwave-safe bowl and heat until the sugar dissolves and the mixture is smooth (about 90 seconds, stirring once or twice). If you prefer the stovetop, warm the mixture over low heat until smooth. Stir the crushed corn flakes into the warm peanut butter mixture, press into a prepared pan, and top with melted chocolate. Chill until the chocolate sets, then slice into bars.
Why You Will Love This Recipe
These Peanut Butter Corn Flake Bars are beloved for their quick prep, satisfying texture, and adaptability. The base recipe is straightforward, and you can easily add or swap mix-ins like chocolate chips, chopped nuts, or dried fruit to vary the flavor and texture.
You can tailor the recipe to dietary preferences: use vegan butter and vegan chocolate for a dairy-free version, choose gluten-free corn flakes for a gluten-free option, or pick natural peanut butter for a cleaner ingredient list and more pronounced peanut flavor.
Ingredients Needed

- Cornflakes – 5 cups, lightly crushed so they mix evenly with the peanut butter mixture.
- Peanut butter – 1 cup, smooth or crunchy depending on your preference.
- Sugar – ½ cup, combined with corn syrup to create the sweet binder.
- White corn syrup – ½ cup, helps bind and keep the bars chewy.
- Chocolate chips – 6 ounces, melted for the topping; milk chocolate works well but use your preferred type.
How to Make Peanut Butter Corn Flake Bars
Step 1: In a small saucepan over low heat (or in a microwave-safe bowl), warm the peanut butter, sugar, and corn syrup just until the sugar dissolves and the mixture is smooth. Stir frequently to prevent scorching.

Step 2: Remove from heat and fold the crushed corn flakes into the warm mixture until evenly coated. Press the mixture firmly into an 8×8-inch pan lined with foil or parchment and lightly greased. Lining the pan makes lifting and cutting the bars easier.

Step 3: Melt the chocolate chips gently over low heat or in short microwave bursts, stirring until smooth. Spread the melted chocolate over the pressed bars and refrigerate until the chocolate is firm.

Step 4: Lift the foil or parchment from the pan and cut into 12 equal bars. Store bars in an airtight container in the refrigerator for the best texture.
Other Recipes to Try
Try other quick no-bake sweets like No-Bake Chocolate Peanut Butter Cookies, Blueberry Cheesecake Bars, or lighter energy bites. These easy recipes offer similar convenience and flavor variations.
If you make these No-Bake Peanut Butter Corn Flake Bars, leave a rating and a comment to share how they turned out. I enjoy hearing feedback and suggestions for variations.
No-Bake Peanut Butter Corn Flake Bars
Description
If you’ve tried Scotcheroo bars, these cornflake bars deliver a comparable sweet, peanut-butter-forward flavor while offering a slightly different crunch thanks to corn flakes.
Ingredients
- 5 cups corn flakes, crushed
- 1 cup crunchy or smooth peanut butter
- ½ cup sugar
- ½ cup white corn syrup
- 6 ounces chocolate chips
Instructions
- Heat peanut butter, sugar, and corn syrup over low heat (or microwave in short bursts) until smooth and the sugar dissolves. Stir frequently.
- Fold in the crushed corn flakes until well coated. Press the mixture into an 8×8-inch pan lined with foil or parchment and lightly greased.
- Melt chocolate chips and spread evenly over the pressed bars. Chill until the chocolate sets.
- Lift out of the pan and cut into 12 bars. Store chilled in an airtight container.
Notes
MyWW points (calculated): Blue 13; Green 13; Purple 13. Nutrition and points may vary by brands and ingredient choices.
Nutrition
- Serving Size: 1 bar
- Calories: 314
- Sugar: 24g
- Fat: 14g
- Saturated Fat: 4g
- Carbohydrates: 43g
- Fiber: 3g
- Protein: 7g